Filtering apparatus.



J. B. DAVIS.

FILTERING APPARATUS.

APPLICATION FILED APR. 17. 1915.

1,156,592. 7 Patented Oct.12,1915.

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ATTORNEY.

COLUMBIA PLANOGRAPH '60.,WMHIXGTON, n. 2v

J. B. DAVIS.

FILTERING APPARATUS.

APPLICATION FILED APR. 11. 1915.

Patented Oct. 12, 1915.

2 SHETSSHEET 2.

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JOHN B. imvIs, or SPRINGFIELD, MASSACHUSETTS, AssIeIvon TO GILBERT & BARKER MANUFACTURING C MPANY, on waste SPRINGFIELD, MASSACHUSETTS, A 00am RATION OF MASSACHUSETTS.

Arrhenius.

messes.

T d all whom it my camera I Be it knownthat I, JOHN B. DAVIS, a citizen of the United States of America, residing in the city of Springfield; county of Hanip'den, and State of Massachusetts; have invented certain new and useful Improvements in Filtering; Apparatus, of which the following is a specification;

This invention relates to filtering apparatus and in particular to apparatus which is adapted for the filtration of gasole'ne' and like liquids. v

An object of this invention is to provide an efficient and improved apparatus for the filtration of gasolene',which is adapted to be conveniently interposed in a pipe line between supply and delivery apparatus.

Another object is to provide apparatus of the class described, which is arranged for quick and convenient cleaning;

A further object is to provide a filtering apparatus suitable for economical manufacture; the parts of which are few in number, simple in structure and arranged for convenient and rapid assembly.

With these objects in View; one preferred form of my invention; for illustrative pur= poses, is shown in the accompanying drawings, in which:

Figure 1 is a sectional elevationof the assembled filter; Fig. 2 is a sectional plan view taken on the line 22 of Fig; 1 and looking in the direction of thearrows; Fig. 3 is a sectional plan view taken on the line 33 of Fig. 1 and looking in the direction of the arrows; Figs. a, 5, and 6 are sectional views illustrating three steps in the assem bly of the filter. I

Referring to the drawings in detail and particularly in Figs. 1 to 3 inclusive, 1 and 2 represent upper and lower cap members of circular cross sectional shape, which are interconnected by a thin cylindrical shell 3. The parts 1 2, and 3 comprise an inclosi ng casing for the filtering apparatus to be de scribed. v I f p The upper cap member 1 is provided on opposite sides with tapped holes 4eand 5 which Specification of Letters Patent.

Patented bet. i2, 1915.

Applicatidn filed Min 17, 1515. Serial no. 21,598.

lead to chambers 6 and 7, suitably cored in the cap as'clearl shown in F ig; 2. Formed in the under side of the cap 1 and leading to the chambers 6 and 7 are other tapped holes 8 and 13, respectively. Threaded into the opening 13 and depending vertically there from is a filter 14 formed of any suitable material. Threaded into the opening 8 is a pipe 9, which extends vertically downward to the top of the lower cap 2 and cornniunicates therewith. A filter 10;-of substantially conical shape is supported on the pipe 9 by means of a flange 26 which may be secured to the pipe in any suitable manta such as soldering' for exam le. The base of the conical filter is equal in diameter to the'inside of the shell 8 so that it just fills the latter and forins a porous partition therein. This filter may be constructed in any of the well known ways and of any suitable material. For the purposes of illustration, however, it has been shown as made up of a shell 11 of perforated inetal (see Fig. 1) which supports a covering 12 of filtering material.

Near the apex of the cone filter 10 is a collar with an'opening 25, which is centrally arranged relative to the shell 8. The lower cap member 2 is a hollow casting which has a central boss 15 suitably supported by webs 16 from the periphery of the casting, as clearly shown in Fig. The boss 15 has a threaded hole therein to receive the lower threaded end of a tube17. The latter extends downwardly close to the lower portion of the cap 2 and has V-sh'aped notches 18 therein; A nut 19 on the tube17 is clamped against the upper face of the boss '15 and serves to position the tube relative to the bottom of cap 2. This tube 17 eirtendsupwardly through'the opening 25 in the filter 10 and passes through a centrally arranged sniooth bore 27 in the, cap member 1. The upper end of the tube 17 is also threaded to receive a nut 20, which is arranged to clainp the shell 3 between the caps 1 and 2. A valve 21, having a squared operating shank -22 to receive a socket wrench, is applied to the top of the tube 17 It will be seen that the structure just described is composed of few parts, each of which is of the simplest character and designed to require little or no finishing. No special operations are necessary to form any of the parts and practically the only finishing operations necessary in the manufacture of the filter may be performed with a tap and die. The cap 1 is a casting, which is cored to form all the openings therein, and

requires only the tapping of the openings 4, 5, 8 and, 13. Similarly the lower cap 2 is cast and requires only the tapping of the central opening in boss 15. The shell 3 and member 17 are constructed of standard attached and properly positioned on the pipe 9. The latter is then'threaded into the opening 13 of the cap 1 and turned until the opening 25 in the filter 10 is alined with the opening 27 in the cap. The filter l lis next threaded into the opening 13 of cap 1, which completes the assembly of one group of the parts. The assembly of the next group is illustrated in Fig. 5. The check nut 19 is first turned ontocthe lower portion of the tube 17 and the latter is then turned into the threaded opening in the boss 15 until the bottom of the tube occupies the position shown in Fig. 5. The nut 19 is then tightened against the upper face of the boss 15 to secure the tube in position. The shell 3 is next dropped over the tube 17 and into a circumferential flanged recess 23. The assembled groups shown in Figs. 4 and 5 are then placed together, which is a simple operation. The tube 17 is passed through the central hole 25 of the cone filter lOand then through the hole 27 of cap 1. The casing 3 in its upward movement is guided by the base of the cone filter 10 and the upper end of the shell 3 finally rests in a suitable recess 24 in the under side of the cap 1. This stage in the assembly of the parts is shown in Fig. (5 and to complete the work and secure the assembled groups together, the. nut 20 is simply turned down against the cap 1,. wherebythe shell 3 is held between the caps 1 and 2. Finally the valve 21 is applied to the top portion of tube 17, which extendsbeyond the nut 20.

by suitable piping to a supply tank and in terposed in this piping is .a pump. The

chamber 7 is also connected by piping to.

In operation the chamber. 6 is connected.

ber 6, down the pipe 9 and into the cap 2. The pressure of the pump then forces the liquid through the filter 10 into the interior of the shell 3 and finally through the filter 14C to the delivery piping. The filter 10 is P adapted primarily to remove all water from the gasolene and the screen 12 is formed of suitable material to effect this purpose." All water in the gasolene, therefore, remains in the cap 2 and may be removel therefrom, when desired, in the following manner. The valve in the delivery piping connected to the outlet 5 is closed and the valve 21 is opened. The pump is then started and the liquid in the cap; 2 isforced upwardly through the tube 17 and out through the valve 21. The

notches l8 are'arranged to permit a free flow up the tube even should the bottom of the latter abutthe cap 2. It willbe noted that the tube 17 serves the double purposes of a tie rod andblow-off tube. V

Thus I have provided anefiicient filter for gasolene and like liquids, which is simple in construction, easy to assemble, and compara tively cheap to manufacture. fit is ,obvious that various changes may be made in the specific structure shown without departing from the scope of my, invention which is defined in the appended claims.

What I claim is:

, 1. A filter comprising in combination, a

casing formed with an inlet and outletsat i one end thereof, a filter at the other end of said casing forming a partition therein, a.

connection from said inlet extending through and below said filter, said connection arranged tojsupport the filter, and a second filter connected to said outlet and arranged above said first'named' filter.

2. A filterfcomprising in combination, a

casing having an inlet and-outlet at one end 7 thereof, a filter within said casing at the other end thereof arranged to partition said casing, a connection from said inlet extending throughand' below said filter, a second filter above said first named filter connected with said; outlet, a tube extending from below said first named filter through the-opposite end of said casingand a valve on the one end of said casing through the opposite end thereof, and a valve on the end of the tube.

member at each end of said casing, an inlet and outlet passage formed-in one of said cap 4. A filter comprising a casing, a cap I members, a pipe from said inlet passage to the other cap member and extending from Within said casing, a filter supported on said a position below said filter near one end of pipe and forming a partition Wall Within said casing to and Without the other end of 10 said casing, said pipe extending through said casing and a valve on the end of said and below said filter, a second filter connecttube, said tube arranged to clamp said cased to said outlet passage, and arranged ing between said cap members.

above said first named filter, a tube secured JOHN B. DAVIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. I 

